Neodymium
Neodymium Ne`o*dym"i*um, n. [NL. Dee {Neo-}, and {Didymium}.] (Chem.) The chemical element of atomic number 60, one of the rare earth elements. Symbol Nd. Atomic weight 144.27.

Note: It is a rare metallic element occurring in combination with cerium, lanthanum, and other rare metals, and forming amethyst-colored salts. It was originally thought to be part of a supposed new element didymium, obtained from cerite in 1843. Later this was resolved into two elements, neodymium and praesodymium by von Welsbach in 1885. It is chiefly trivalent. It is a faintly yellow metal. [1913 Webster +PJC]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • neodymium — Symbol: Nd Atomic number: 60 Atomic weight: 144.24 Soft bright silvery metallic element, belongs to the lanthanoids. Seven natural isotopes, Nd 144 being the only radioactive one with a half life of 10^10 to 10^15 years. Six artificial… …   Elements of periodic system

  • neodymium — [nē΄ō dim′ē əm, nē΄ədim′ē əm] n. [ModL < neodymia, a rare earth (< Gr neos, NEW + ModL (di)dymium: see DIDYMIUM) + IUM: so named (1885) by C. A. von Welsbach (see WELSBACH BURNER), from being split from didymium] a silver colored chemical… …   English World dictionary

  • Neodymium — praseodymium ← neodymium → promethium ↑ Nd ↓ U …   Wikipedia

  • neodymium — /nee oh dim ee euhm/, n. Chem. a rare earth, metallic, trivalent element occurring with cerium and other rare earth metals, and having rose colored to violet colored salts. Symbol: Nd; at. wt.: 144.24; at. no.: 60; sp. gr.: 6.9 at 20°C. [1880 85; …   Universalium

  • neodymium — neodimis statusas T sritis chemija apibrėžtis Cheminis elementas. simbolis( iai) Nd atitikmenys: lot. neodymium angl. neodymium rus. неодим …   Chemijos terminų aiškinamasis žodynas

  • Neodymium — Eigenschaften …   Deutsch Wikipedia

  • neodymium — neodimis statusas T sritis fizika atitikmenys: angl. neodymium vok. Neodym, n rus. неодим, m pranc. néodyme, m …   Fizikos terminų žodynas

  • neodymium — noun Etymology: New Latin, from ne + dymium (from didymium) Date: 1885 a silver white to yellow metallic element of the rare earth group that is used especially in magnets and lasers see element table …   New Collegiate Dictionary

  • neodymium — noun a metallic chemical element (symbol Nd) with an atomic number of 60. See Also: didymium, praseodymium …   Wiktionary

  • neodymium — One of the rare earth elements; atomic no. 60, atomic wt. 144.24. [neo , new, + G. didymos, twin (of lanthanum)] * * * neo·dym·i·um .nē ō dim ē əm n a yellow metallic element of the rare earth group symbol Nd see ELEMENT …   Medical dictionary

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